I got a flyer from ViaCrypt today about these: ViaCrypt PGP for MS/DOS $99.98 one user, $299.98 five user ViaCrypt PGP for Unix $149.98 one user, $449.98 five user ViaCrypt PGP for C$ $119.98 one user The Unix versions are for: SunOS 4.1.x, RS/6000 AIX, HP 9000 700/800 UX, SCO 386/486 UNIX (others soon). The Compu$pend version integrates into CompuServe Information Manager or CS Navigator for Windows. Includes the regular PGP and an integration program for CompuServe. DigiSig+ cryptographic modules: RSA, DES, and DSS. Developers' Kit $950 two user for MS/DOS. DigiSig+ D150. Software crypto engine. $80 to $20 depending on quantity. DigiSig+ D350. Parallel port crypto device, looks like a modem. $625 DigiSig+ D355. As above but plugs into serial port. $635 DigiSig+ D360. Internal board for PC. $595 Memory card - securely stores a secret key. $30 for two.